CSV ↔ JSON Converter

Paste CSV, get JSON. Paste JSON, get CSV. Client-side, RFC 4180 compliant CSV parser handles quoted fields, escaped quotes, and multi-line cells. Type coercion for CSV → JSON (numbers, booleans, null) is toggleable. Works with arrays of objects or arrays of arrays. Delimiters: comma, tab, semicolon, pipe. Everything runs in your browser — handy for quick data ports during API work or log analysis.

Delimiter:Header rowCoerce typesPretty

CSV input

JSON output

[
  {
    "name": "Alice Nakamura",
    "age": 29,
    "email": "alice@example.com",
    "country": "JP",
    "active": true
  },
  {
    "name": "Bob Silva",
    "age": 34,
    "email": "bob@example.com",
    "country": "BR",
    "active": true
  },
  {
    "name": "Chen Wei",
    "age": 41,
    "email": "chen@example.com",
    "country": "CN",
    "active": false
  },
  {
    "name": "Diego Martinez",
    "age": 27,
    "email": "diego@example.com",
    "country": "MX",
    "active": true
  },
  {
    "name": "Emily Stone",
    "age": 38,
    "email": "emily@example.com",
    "country": "US",
    "active": true
  }
]

Notes

• Fully client-side — no uploads
• RFC 4180 CSV: quoted fields, escaped quotes, multi-line cells
• Type coercion: numbers, booleans, null (opt-in for CSV→JSON)
• JSON→CSV supports array-of-objects or array-of-arrays
• Delimiters: comma, tab, semicolon, pipe
• Missing object keys are filled with empty cells

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About CSV ↔ JSON Converter

Convert CSV to JSON and JSON to CSV with smart type coercion. Supports comma, tab, semicolon, pipe delimiters. RFC 4180 compliant. Free, no signup. This tool runs entirely in your browser — no data is sent to any server. Your content stays private and secure. MarkdownMe provides free, fast, and reliable Markdown tools for developers, writers, and anyone who works with Markdown.